Table 3.
The likelihood ratios and results of a likelihood ratio test for all models in Experiment 2. The Best Model is the model that is compared against all Comparison models that differ by removing a factor. The Likelihood reports how much more likely the best model is to the comparison. The chi-square statistic results report whether the best model performed statistically better than the comparison.
| Experiment 2 Model | Factor | Likelihood | χ2 | DF | p | |
|---|---|---|---|---|---|---|
| Risky Choice | Full | Signal | >1000 | 2019.6 | 5 | <.001 |
| Task Difficulty | >1000 | 1084.2 | 5 | <.001 | ||
| History | Full | Signal | >1000 | 1051 | 13 | <.001 |
| Condition | >1000 | 247.42 | 13 | <.001 | ||
| Prior Choice | >1000 | 1530.6 | 13 | <.001 | ||
| Prior Outcome | >1000 | 298.98 | 13 | <.001 | ||
| Accuracy | Full | Signal | 164 | 20.224 | 5 | 0.001 |
| Condition | >1000 | 3469.2 | 5 | <.001 | ||
| Truncation | Full | Signal | >1000 | 7910.3 | 31 | <.001 |
| Condition | >1000 | 133.91 | 31 | <.001 | ||
| Outcome | >1000 | 4460.1 | 31 | <.001 | ||
| Delay Segment | >1000 | 10828 | 45 | <.001 | ||
| Choice | >1000 | 687.64 | 31 | <.001 |